Screen



May 10. 1927;

E. E. D EISTER SCREEN Filed July 15, 1926 ATTORNEY Patented May 16,1927.

UNITED STATES EMIL EDWARD DEISTER, OF FORT WAYNE, INDIANA.

SCREEN.

Application filed July 15,

This invention relates to improvements in mechanical toys ofthat type in which material, such as dry sand, is passed through a series of Operations. The object of the im provement is to afford a power driven mechanical toy for the handling and treatment of dry sand as a means of instructive amusement.

This object is accomplished by the construction illustrated in the accompanying drawings in which:

Fig. 1 is a side elevation of a construction embodying the invention; and

Fig. 2 is a plan projected from Fig. 1.

The characters of reference appearing in the description refer to parts shown in the drawings and designated thereon by corre sponding characters. r

The invention comprises a vehicle constituted of a platform 1 supported upon a pair of axles 2 and 3 each of which is provided at each of its ends with a wheel 4, upon which wheels the vehicle is movable. At one end of the platform is provided a pair of vertically disposed standards 5 that support near their upper ends a transversely disposed drive shaft 7,'which shaft has on each end a sheave wheel 8, and alsoa second sheave wheel 9 adjacent one of the former sheave wheels. In" the upper ends of said standards is mounted a transversely disposed counter shaft 10 having fixed thereon a sprocket wheel 11 and drive gear 12, which drive gear has actuated relation with the drive shaft 7 through intermediate gearing 13. A hand-operated crank shaft 14, provided with a gear 15 that meshes with said intermediate gearing 13, is arranged so that the counter shaft 10 may be actuated manually by turning the crank 16.

A bracket 17 positioned at the top of each of the standards 5 afiord bearing support for said crank shaft and intermediate gear mechanism.

The end of the platform, opposite the standards 5, has projecting beams 18 in which is mounted a transverse shaft 19 having thereon a sprocket wheel 20, and upon the sprocket wheels 11 and 20 is mounted a conveying member consisting of an endless chain 21 having thereon a series of conveyer buckets 22 spaced apart, which conveyer member is actuated as the counter shaft 10 is rotated. An open chute 23 is supported at its lower end upon the beams 18, and at its upper endbetween the stand- 1926. Serial No. 122,545.

ards 5 and extends between the upper and lower lengths of the endless chain. The chute serves as a brace for the standards and also receives droppings from the buckets of the conveyor member, which droppings are directed by the chute to the ground beneath the conveyer.

A hopper 2lis positioned on the standards 5 at a point beneath the countershaft 10 so as to receive materials discharged from the upper end of the conveyor member, and contiguous with the lower end of the hopper, and mounted upon the standards 5 is a bin 25 that extends outwardly from the standards and has in its lower end an out let spout 26 which is controlled by a valve 27 arranged therein. In the top of the bin 25, and extending beneath the hopper 2 1, is

arranged a vibratable screen having fixed thereon an upwardly extending frame 29 in which is mounted a transverse shaft '30. Above each end of the shaft 30 is mounted a sheave pulley 31-to be actuated by a belt 32 that is trained on the corresponding sheave pulley 8 on the drive shaft 7. The shaft 30 has mounted thereon a iiy wheel 83 having a counter weight '34: fixed eccentric-ally thereon so that the fly wheel rotates out of balance when the shaft 30 is actuated, and thus causing the screen to vibrate.

At the outer end of the bin 25 is positioned a horizontal rock-shaft 35 which has fixed thereon a catch box 36 for the reception of oversize materials that pass over the screen from the hopper. The catch box tips when the rockshaft is actuated, so that its contents are thereby discharged. Upon one end of the rock-shaft is fixed an arm 37 which has connection with a hand operated Windlass 38 by means of a cable 39, the Windlass being mounted in the standard 2-35. A spring controlled ratchet mechanism 4rd has locking engagement with the Windlass by which the Windlass is prevented from retracting, and thereby the catch boxis sustained in receiving position.

Upon the platform 1 is installed an electric motor 41 that has geared connection with the counter shaft d2, there being a sheave pulley 43 on, the counter shaft that has a belt connection 4A with the sheave pulley 9 on the drive shaft 7 The motor is energized by current supplied by a battery 45, or other suitable source of electric energy, there being conductors %i6 and a switch d7 arranged in proper connectionbetween ill) ponitiom-ztl upon the gronnd. with the h aver end of the conveyer member (.kitlltllllfi in o a pile oi' sand (not shown and is held fillitionary b v im'inipulatinn' the brake lever s-ro that the brake is applied. 'lhe electric curient in then turned on by closing ihe switch. \vhich causes tmeration ot the motor, no that the conveyor inen'ibe' and the screen are actnated. The sand from the pile on the ground carried h the convever buclzeta and deposited into the hopper from which it passes onto the .-;creen. lhe i-lant and vibration of the screen we e the wand to more, the oversizae pa rticlcs pzmsing over the screen into the -atch boil. while the undersize particles paw tl'irorni'h the screen into a bin. its the catch bot; and bin bcconic tilled, the; are emptied h v opening the valve I? in the dii=char re tube at the bottom ol the him and by rel iasing the ratchet mechanism from engagement from the 'WlIMllilSH, permitting the catch box to damp its coir tents.

lVhat- I claim is 1. In a portable aand sizing pparatue. a vehicle having verti 'al atandards at one end thereof: :ibin supported in an elevated position by said Standarda and extending ontwardlv therefrom; a catch box hinged at the outermost end of the bin, so dispo-ed as to swine into discharging position under said bin: a latch controlled Windlass having actnatine' relation with the catch-box and operable to sustain the catch-bo.\ in receiving position: a screening mechanism positioned above the bin and diseharging undersize material into the bin and oversize material into said :ateh-box; an elevator tor supplying sand to sa id screen mechanism; and aetuatinn' means for the screening mechanism and LlOVill'Ol'.

1!. ln apparatus oi the class described, a bin supported in an ele'ated position and having a valve controlled outlet in its bot tom: :1 witch-box hinged at the outer end ol said bin and disposed no as to swing beneath the bin into eniptyii'ig position; a latch controlled, Windlass operiible to H'IOVG said catch box into horizontal or receiving position; a screening mechanism arranged to discharge undersized material into said bin and oversize material into said :atch box: and means l'or supplying said screeningmechanism with material to be screened.

3. In combination with a portable screening: mechanism, an ele ated bin arranged. to receive nndersize material from said screeningmechanism; a latch box having hinged support at the :iront edge of said bin and being adaptedv to swing beneath the bin when in position to discharge; and a latch controlled Windlass operable to raise and hold aaid catch box in receiving position.

l n testimony whereof l atlix my signature.

EIilIL EDll ARD DEISTER. 

